You can contact Imtec Acculine in Sunnyvale, Calif. We are making PFA Teflon coated stainless steel heated tanks with external blanket heaters. For long KOH etch applications these can include condensing collars and lids that will reduce etch rate changes due to evaporation. Static and recirculating baths are available in various sizes and magnetic stir motors can be added as well. Contact Imtec Acculine 1295 Forgewood Ave. Sunnyvale, CA 94089 Ph: 408-745-7800 Fax: 408-734-4883 email: sales@imtecacculine.com web: www.imtecacculine.com We have representatives throughout the US, Europe, and Asia who will be happy to assist you with application details. -----Original Message----- From: mems-talk-admin@memsnet.org [mailto:mems-talk-admin@memsnet.org]On Behalf Of Kuo Wu Cheng Sent: Thursday, February 21, 2002 11:43 PM To: mems-talk@memsnet.org Subject: [mems-talk] KOH etch instrument Hi, everybody: I recently study on the KOH etching Silicon. The silicon surface roughness is very important for me. Who can introduce me some firms producing very nice KOH bath(water circulating,clean automatically,control of flow field..etc.) Thank you very much!! BagelKuo _______________________________________________ mems-talk@memsnet.org mailing list: to unsubscribe or change your list options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk Hosted by the MEMS Exchange, providers of MEMS processing services. Visit us at http://www.mems-exchange.org/